Experimental Evaluation of Robust Controllers in Buildings with Added Hysteretic Passive Damping

本项目研究了在地震环境中使用被动阻尼和鲁棒主动控制的混合组合来提高建筑物的能量耗散水平。 该程序的一个重要特点是使用最先进的方法来设计鲁棒控制器，这些控制器能够处理飞机模型（受控结构）和干扰（地震）中的非结构化不确定性。 鲁棒混合控制的建议提供了相当大的承诺，因为被动和鲁棒主动控制的吸引人的功能相结合，使被动能量耗散可以用来处理小干扰，也降低了主动系统的设计要求。 研究的重点是一系列的实验测试，并支持分析研究，1/4比例的六层测试建筑结构位于纽约州立大学布法罗的NCEER。 研究工作将致力于为试验结构开发一个鲁棒控制系统;将主动系统与基于先前研究中开发和测试的特殊滞后阻尼连接器的最佳被动阻尼系统相结合;根据从先前实验室小规模试验中获得的经验设计一个试验方案;在六层结构上安装被动和主动装置，并进行一系列振动台试验;评估结果，比较测量和预测的反应，并评估影响。 该研究项目将是在接近全尺寸和实际情况下实际测试有前途的主动控制系统的首批努力之一。 这将为实际建筑结构中混合控制系统的实施提供新的见解。

This project conducts studies of using a hybrid combination of passive damping and robust active control to provide enhanced levels of energy dissipation in buildings in seismic environments. A significant feature of this program is the use of state-of-the-art methods for designing robust controllers that are capable of handling the unstructured uncertainty in both the model for the plane (the controlled structure and in the disturbance (the earthquake). The robust hybrid control proposal offers considerable promise because the attractive features of both passive and robust active control are combined such that passive energy dissipation can be used to handle small disturbances and also reduce design requirements for active systems. The focus of the research is a series of experimental tests, and supporting analytical studies, on a 1/4 scale six story test building structure located at NCEER, SUNY Buffalo. The research effort will be made to develop a robust control system for the test structure; combine the active system with an optimal passive damping system based on special hysteretic damping connectors developed and tested in prior research; design a test program based on experience gained from previous laboratory small-scale tests; install passive and active devices on the six story structure and carry out a series of shake table tests; and evaluate results, compare measured and predicted response, and assess implications. This research project will be one of the first efforts to actually test promising active control systems at near full-scale and in practical situations.. It is expected to provide new insight into the implementation of hybrid control systems in actual building structures.